@techreport{Zehtindjiev-2022-1793977,
  author = {Zehtindjiev, P and Whitfield, D},
  title = {Summary of Activates and the Results of Ornithological Monitoring in the Integrated system for Protection of Birds, 2021},
  institution = {Bulgarian Academy of Sciences},
  year = {2022},
  month = {apr},
  url = {https://img1.wsimg.com/blobby/go/1a109f6d-5fe3-4ff5-bcf3-17602b59ac27/downloads/2021%20Report_Annual%20Summary%20Report_ENG.pdf?ver=1656336858629},
  keywords = {Wind Energy, Land-Based Wind, Avoidance, Birds},
}